BURBANK – A woman was shot to death early today in an upscale Burbank neighborhood, apparently when she answered a knock on her door, police said.

Authorities went to the 4200 block of West Jacaranda Avenue, near North Toluca Park Drive, about 12:30 a.m., said Burbank police Lt. William Berry.

Arriving officers discovered the woman on the ground in front of the home, which is located “in an upscale neighborhood in the Toluca Lake district of Burbank,” Berry said.

The victim was declared dead at the scene, Berry added. Her name was withheld pending family notification. The motive for the shooting was unknown.

Burbank police Sgt. Robert Quesada told NBC4 that the preliminary investigation indicated that the woman was gunned down when she answered the door of her home.

“Somebody knocked on the door supposedly, and that’s when the shots were fired,” Quesada told Channel 4. “Police were called, and that’s when officers responded and they found the female there, who had died from a gunshot wound.”

Authorities were called to the scene by a man who was inside the home, Quesada said. The man was being questioned, Quesada said.